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kernel: slab-out-of-bounds read in fbcon

🗓️ 18 May 2021 16:07:21Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

A local attacker can exploit a slab out-of-bounds read in the fbcon driver, causing crash or kernel info leakage.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8x86_64kernel-rt4.18.0-305.rt7.72.el8kernel-rt-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-core4.18.0-305.rt7.72.el8kernel-rt-core-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug4.18.0-305.rt7.72.el8kernel-rt-debug-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-core4.18.0-305.rt7.72.el8kernel-rt-debug-core-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-debuginfo4.18.0-305.rt7.72.el8kernel-rt-debug-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-devel4.18.0-305.rt7.72.el8kernel-rt-debug-devel-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-kvm4.18.0-305.rt7.72.el8kernel-rt-debug-kvm-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules4.18.0-305.rt7.72.el8kernel-rt-debug-modules-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules-extra4.18.0-305.rt7.72.el8kernel-rt-debug-modules-extra-4.18.0-305.rt7.72.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debuginfo4.18.0-305.rt7.72.el8kernel-rt-debuginfo-4.18.0-305.rt7.72.el8.x86_64.rpm
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28 Jun 2026 09:07Current
7.1High risk
Vulners AI Score7.1
CVSS 3.15
CVSS 26.1
EPSS0.00511
3